One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(5,6,11,14,10,16,9,15)(7,17,18,12,13,20,19,8)(23,29)(26,35)(30,36)(31,34)(5,7)(6,12)(8,16)(9,18)(10,13)(11,19)(14,17)(15,20)(21,22,24,27)(23,30,29,36)(25,33,32,28)(26,34,35,31)(2,4)(5,8,10,12)(6,13,16,7)(9,20,11,17)(14,19,15,18)(21,23,24,29)(22,26,27,35)(25,34,32,31)(28,36,33,30)(2,4)(6,14)(7,18)(9,11)(13,19)(15,16)(17,20) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.